Champion 8.5kW Home Standby (100177)
Standby generator. Specs from the manufacturer page (checked ).

The Champion 100177 8.5-kW Home Standby Generator is a standby generator rated 8500 W on propane and 7500 W on natural gas, paired with a 50A select-circuit automatic transfer switch. It starts automatically when power goes out and returns to standby when power is restored, running from a connected propane or natural gas supply so it never needs refueling. The text lists a 59.5 dBA operating noise level and a 10-year limited warranty.
Key features
- Rated 8500 W continuous on propane and 7500 W on natural gas
- Automatic start and return to standby; 50A Select Circuit transfer switch with 12 circuits
- 24V starting system operates down to -22 °F with no warming kit
- Weekly self-diagnostic tests
- Operational noise 59.5 dB(A), approximate, measured at 23 ft (7 m)
- Low Oil Shut-Off: Yes
- Alternator produces less than 5% total harmonic distortion (THD)
- Transfer switch in NEMA 3R enclosure; UL and cUL listed
What it is for
- Home backup power
Specifications
| Running watts | 8500 W |
|---|---|
| Fuel | dual-fuel |
| Noise | 59.5 dB |
| Weight | 170.05 kg (374.9 lb) |
| Dimensions | 124.46 × 71.12 × 71.12 cm (49.0 × 28.0 × 28.0 in) |
| Warranty | 10 years |
From the Champion page. Values the manufacturer does not publish are left out.
What is in the box
- Enclosure Keys
- Gas Inlet Flex Hose
- LPG Idling Metering Jet
- LPG Main Metering Jet
- Oil Drain Tray
Similar standby generators
Champion 8.5kW Home Standby (100177) comparisons
Connection and wiring
We have not linked an official manual for this model yet; see the Champion page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
Can the Champion 8.5kW Home Standby (100177) start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 8500 W output (no separate peak published). That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.